editor.c

   1 /*
   2    Cantaveria - action adventure platform game
   3    Copyright (C) 2009  Evan Rinehart
   4
   5    This program is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU General Public License
   7    as published by the Free Software Foundation; either version 2
   8    of the License, or (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to
  17
  18    The Free Software Foundation, Inc.
  19    51 Franklin Street, Fifth Floor
  20    Boston, MA  02110-1301, USA
  21 */
  22
  23 #include <stdio.h>
  24
  25 #include "util.h"
  26 #include "backend.h"
  27 #include "graphics.h"
  28 #include "game.h"
  29
  30 #include "loader.h"
  31
  32 #include "text.h"
  33
  34
  35
  36 int cursor_x;
  37 int cursor_y;
  38 sprite* cursor;
  39
  40 int camera_x;
  41 int camera_y;
  42
  43 int screen_x;
  44 int screen_y;
  45
  46 struct {
  47   int flag;
  48   int key;
  49   int timer;
  50 } repeat;
  51
  52 int hold_fire;
  53 unsigned char brush_tile;
  54
  55
  56
  57 void press_fire(){
  58   //if screen exists change tile
  59   //else create new screen
  60   zone* z = game.current_zone;
  61   int si = game.si;
  62   int sj = game.sj;
  63   struct screen* scr = ZONE_LOOKUP(z,si,sj);
  64
  65   if(!scr){
  66     scr = xmalloc(sizeof(struct screen));
  67     z->screens[si+z->w*sj] = scr;
  68   }
  69
  70    scr->tiles[cursor_x-si*20][cursor_y-sj*15] = brush_tile;
  71
  72 }
  73
  74 void cursor_control(int key){
  75   switch(key){
  76     case LEFT_KEY: cursor_x--; break;
  77     case RIGHT_KEY: cursor_x++; break;
  78     case UP_KEY: cursor_y--; break;
  79     case DOWN_KEY: cursor_y++; break;
  80   }
  81
  82   if(cursor_x < 0){cursor_x = 0;}
  83   if(cursor_y < 0){cursor_y = 0;}
  84
  85   /*check for crossing a zone exit*/
  86
  87   if(cursor_x < camera_x){
  88     camera_x--;
  89     point_camera(camera_x*16, camera_y*16);
  90   }
  91   if(cursor_x >= camera_x+20){
  92     camera_x++;
  93     point_camera(camera_x*16, camera_y*16);
  94   }
  95   if(cursor_y < camera_y){
  96     camera_y--;
  97     point_camera(camera_x*16, camera_y*16);
  98   }
  99   if(cursor_y >= camera_y+15){
 100     camera_y++;
 101     point_camera(camera_x*16, camera_y*16);
 102   }
 103
 104   screen_x = cursor_x/20;
 105   screen_y = cursor_y/15;
 106   if(cursor_x < 0){screen_x--;}
 107   if(cursor_y < 0){screen_y--;}
 108   game.si = screen_x;
 109   game.sj = screen_y;
 110
 111   cursor->x = cursor_x*16;
 112   cursor->y = cursor_y*16;
 113
 114   if(hold_fire) press_fire();
 115 }
 116
 117
 118 void edit_keydown(int key){
 119
 120   if(key == ESCAPE_KEY){
 121     end_program();
 122   }
 123
 124   switch(key){
 125     case LEFT_KEY:
 126     case RIGHT_KEY:
 127     case UP_KEY:
 128     case DOWN_KEY:
 129       repeat.flag = 1;
 130       repeat.key = key;
 131       repeat.timer = 0;
 132       cursor_control(key);
 133       break;
 134     case FIRE_KEY:
 135       hold_fire = 1;
 136       press_fire();
 137       break;
 138     case L_KEY:
 139       brush_tile--;
 140       break;
 141     case R_KEY:
 142       brush_tile++;
 143       break;
 144   }
 145
 146 }
 147
 148 void edit_keyup(int key){
 149   if(key == repeat.key){
 150     repeat.flag = 0;
 151   }
 152   if(key == FIRE_KEY) hold_fire = 0;
 153 }
 154
 155 void edit_joymovex(int joy, int x){
 156 printf("you moved joystick %d x axis to %d\n",joy,x);
 157 }
 158
 159 void edit_joymovey(int joy, int y){
 160 printf("you moved joystick %d y axis to %d\n",joy,y);
 161 }
 162
 163 void edit_joypress(int joy, int button){
 164 printf("you pressed joystick %d button %d\n",joy,button);
 165 }
 166
 167 void edit_joyrelease(int joy, int button){
 168 printf("you released joystick %d button %d\n",joy,button);
 169 }
 170
 171
 172 void edit_draw(){
 173   draw_stage();
 174   draw_sprites();
 175   printf_small(1,1,"zone: %s",game.zones[0]->name);
 176   printf_small(1,10,"screen: %d,%d",screen_x,screen_y);
 177   printf_small(1,19,"cursor: %d,%d",cursor_x,cursor_y);
 178   printf_small(1,28,"camera: %d,%d",camera_x,camera_y);
 179 }
 180
 181 struct handler edit_handler = {
 182   edit_keydown, edit_keyup, edit_joymovex,
 183   edit_joymovey, edit_joypress, edit_joyrelease
 184 };
 185
 186
 187
 188
 189 void main_init(int argc, char* argv[]){
 190   backend_init(argc, argv);
 191   loader_init();
 192   graphics_init();
 193   text_init();
 194
 195   load_game();
 196
 197   set_handler(edit_handler);
 198   game.update = NULL;
 199   game.draw = edit_draw;
 200
 201   char** list = loader_readdir("zones");
 202   for(int i=0; list[i]; i++){
 203     printf("loading zone \"%s\"\n",list[i]);
 204     load_zone(list[i]);
 205   }
 206   loader_freedirlist(list);
 207
 208   game.current_zone = game.zones[0];
 209
 210   enable_stage(1);
 211
 212   cursor_x = 0;
 213   cursor_y = 0;
 214   load_sprite("box.spr",SPR_BOX);
 215   cursor = enable_sprite(SPR_BOX);
 216
 217   camera_x = 0;
 218   camera_y = 0;
 219   point_camera(0,0);
 220
 221   hold_fire = 0;
 222 }
 223
 224
 225 void update(){
 226   if(repeat.flag){
 227     repeat.timer++;
 228     if(repeat.timer > 40){
 229       repeat.timer = 38;
 230       cursor_control(repeat.key);
 231     }
 232   }
 233 }
 234
 235
 236
 237
 238 void main_quit(){
 239   loader_quit();
 240   backend_quit();
 241 }
 242
 243 void main_loop(){
 244   since();
 245   int T = 0;
 246   while(1){
 247     T += since();
 248     for(int i=0; i<T/dt; i++){
 249       input();
 250       update();
 251     }
 252     if(T/dt > 0){
 253       draw();
 254       T %= dt;
 255     }
 256     if(ended()){break;}
 257     delay(DELAY_AMOUNT);
 258   }
 259 }
 260
 261 int main(int argc, char* argv[]){
 262
 263   main_init(argc, argv);
 264   main_loop();
 265   main_quit();
 266
 267   return 0;
 268
 269 }
 270